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transform: update allocs test to opaque pointers

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Also, rename most of the SSA values while we're at it.
This commit is contained in:
Ayke van Laethem
2023-03-16 19:34:35 +01:00
committed by Damian Gryski
parent db08b5aaa5
commit 0ddd65658e
2 changed files with 53 additions and 69 deletions
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transform/testdata/allocs.out.ll
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+26 -34
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@@ -3,53 +3,47 @@ target triple = "armv7m-none-eabi"
@runtime.zeroSizedAlloc = internal global i8 0, align 1
declare nonnull i8* @runtime.alloc(i32, i8*)
declare nonnull ptr @runtime.alloc(i32, ptr)
define void @testInt() {
%stackalloc.alloca = alloca [4 x i8], align 4
store [4 x i8] zeroinitializer, [4 x i8]* %stackalloc.alloca, align 4
%stackalloc = bitcast [4 x i8]* %stackalloc.alloca to i32*
store i32 5, i32* %stackalloc, align 4
store [4 x i8] zeroinitializer, ptr %stackalloc.alloca, align 4
store i32 5, ptr %stackalloc.alloca, align 4
ret void
}
define i16 @testArray() {
%stackalloc.alloca = alloca [6 x i8], align 2
store [6 x i8] zeroinitializer, [6 x i8]* %stackalloc.alloca, align 2
%stackalloc = bitcast [6 x i8]* %stackalloc.alloca to i16*
%1 = getelementptr i16, i16* %stackalloc, i32 1
store i16 5, i16* %1, align 2
%2 = getelementptr i16, i16* %stackalloc, i32 2
%3 = load i16, i16* %2, align 2
ret i16 %3
store [6 x i8] zeroinitializer, ptr %stackalloc.alloca, align 2
%alloc.1 = getelementptr i16, ptr %stackalloc.alloca, i32 1
store i16 5, ptr %alloc.1, align 2
%alloc.2 = getelementptr i16, ptr %stackalloc.alloca, i32 2
%val = load i16, ptr %alloc.2, align 2
ret i16 %val
}
define void @testEscapingCall() {
%1 = call i8* @runtime.alloc(i32 4, i8* null)
%2 = bitcast i8* %1 to i32*
%3 = call i32* @escapeIntPtr(i32* %2)
%alloc = call ptr @runtime.alloc(i32 4, ptr null)
%val = call ptr @escapeIntPtr(ptr %alloc)
ret void
}
define void @testEscapingCall2() {
%1 = call i8* @runtime.alloc(i32 4, i8* null)
%2 = bitcast i8* %1 to i32*
%3 = call i32* @escapeIntPtrSometimes(i32* %2, i32* %2)
%alloc = call ptr @runtime.alloc(i32 4, ptr null)
%val = call ptr @escapeIntPtrSometimes(ptr %alloc, ptr %alloc)
ret void
}
define void @testNonEscapingCall() {
%stackalloc.alloca = alloca [4 x i8], align 4
store [4 x i8] zeroinitializer, [4 x i8]* %stackalloc.alloca, align 4
%stackalloc = bitcast [4 x i8]* %stackalloc.alloca to i32*
%1 = call i32* @noescapeIntPtr(i32* %stackalloc)
store [4 x i8] zeroinitializer, ptr %stackalloc.alloca, align 4
%val = call ptr @noescapeIntPtr(ptr %stackalloc.alloca)
ret void
}
define i32* @testEscapingReturn() {
%1 = call i8* @runtime.alloc(i32 4, i8* null)
%2 = bitcast i8* %1 to i32*
ret i32* %2
define ptr @testEscapingReturn() {
%alloc = call ptr @runtime.alloc(i32 4, ptr null)
ret ptr %alloc
}
define void @testNonEscapingLoop() {
@@ -58,24 +52,22 @@ entry:
br label %loop
loop: ; preds = %loop, %entry
store [4 x i8] zeroinitializer, [4 x i8]* %stackalloc.alloca, align 4
%stackalloc = bitcast [4 x i8]* %stackalloc.alloca to i32*
%0 = call i32* @noescapeIntPtr(i32* %stackalloc)
%1 = icmp eq i32* null, %0
br i1 %1, label %loop, label %end
store [4 x i8] zeroinitializer, ptr %stackalloc.alloca, align 4
%ptr = call ptr @noescapeIntPtr(ptr %stackalloc.alloca)
%result = icmp eq ptr null, %ptr
br i1 %result, label %loop, label %end
end: ; preds = %loop
ret void
}
define void @testZeroSizedAlloc() {
%1 = bitcast i8* @runtime.zeroSizedAlloc to i32*
%2 = call i32* @noescapeIntPtr(i32* %1)
%ptr = call ptr @noescapeIntPtr(ptr @runtime.zeroSizedAlloc)
ret void
}
declare i32* @escapeIntPtr(i32*)
declare ptr @escapeIntPtr(ptr)
declare i32* @noescapeIntPtr(i32* nocapture)
declare ptr @noescapeIntPtr(ptr nocapture)
declare i32* @escapeIntPtrSometimes(i32* nocapture, i32*)
declare ptr @escapeIntPtrSometimes(ptr nocapture, ptr)